2046389815 has 4 divisors (see below), whose sum is σ = 2455667784. Its totient is φ = 1637111848.

The previous prime is 2046389803. The next prime is 2046389881. The reversal of 2046389815 is 5189836402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2046389815 - 2⁵ = 2046389783 is a prime.

It is a super-2 number, since 2×2046389815² = 8375422549871468450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204638977 + ... + 204638986.

It is an arithmetic number, because the mean of its divisors is an integer number (613916946).

Almost surely, 2^2046389815 is an apocalyptic number.

2046389815 is a deficient number, since it is larger than the sum of its proper divisors (409277969).

2046389815 is an equidigital number, since it uses as much as digits as its factorization.

2046389815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409277968.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 2046389815 is about 45237.0402988524. The cubic root of 2046389815 is about 1269.5879405954.

The spelling of 2046389815 in words is "two billion, forty-six million, three hundred eighty-nine thousand, eight hundred fifteen".